I'm not aware of a feature to "stitch" together an LDP LSP to an RSVP LSP on a mid-point node, to the best of my knowledge. The P nodes switch traffic based on the ingress label, when the RSVP tail end node pops the last label allocated for the RSVP LSP it will expect whatever traffic it is carrying to terminate locally. If you are using a feature like LDPoRSVP the RSVP LSP acts as a virtual interface so to speak which participates in LDP so it knows where to send the traffic based on the second LDP label after popping the RSVP label. Your best bet is to use RFC3107 labeled BGP but to make that work you'll have to use BGP between the boundary P nodes and the PE routers. Each PE will learn the address for the other PE via labeled BGP with the next-hop set to the boundary node and then each segment will use RSVP or LDP respectively to get between the boundary nodes to the PE and vice versa.
There are features, at least with some vendors, to stitch together BGP to LDP and vice versa since nodes like PE1/PE2 may not support labeled BGP, but the boundary router doing the stitching needs to keep track of that. Easier to just run one protocol. :) Phil On 4/29/12 2:52 AM, "Uzi Be" <[email protected]> wrote: > >hi - >yeah p3 and p4 support both ldp and rsvp, but pe1 can only run rsvp and >pe 2 can only run ldp. > >ce - pe1 - p1 - p2 - p3 -p4 -pe2 - ce >thanks >Andrew > >> Date: Sun, 29 Apr 2012 13:04:06 +0800 >> Subject: Re: [j-nsp] redistributing label between rsvp and ldp >> From: [email protected] >> To: [email protected] >> >> Does p3 and p4 support both LDP and RSVP ? >> >> ./diogo -montagner >> JNCIE-M 0x41A >> >> >> On Sun, Apr 29, 2012 at 12:45 PM, Uzi Be <[email protected]> wrote: >> > >> > hi, >> > I was just testing out to swap labels between two different signaling >>protocols (ldp and rsvp). lets say we have two different network, one is >>running ldp and the other one is running rsvp (same AS, so no inter-as >>options). >> > ce - pe1 - p1 - p2 - p3 -p4 -pe2 - ce >> > so pe1 - p1 - p2 -p3 are running rsvp and p4-pe2 are running ldp, and >>edge ce's are using l3vpn. what are the options to have a labeled path >>from pe2 to pe1 (considering that pe1 is not going to run ldp protocol, >>and pe2 can't use rsvp so ldp tunneling is not an option here). >> > thanks in advance for your comments. >> > Andrew >> > _______________________________________________ >> > juniper-nsp mailing list [email protected] >> > https://puck.nether.net/mailman/listinfo/juniper-nsp > >_______________________________________________ >juniper-nsp mailing list [email protected] >https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
